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Finding the Fourth Proportional to 13,297.55, 19,950.84 and 8,361.41

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Solution

The fourth proportional to 13,297.55, 19,950.84 and 8,361.41 is: 12,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.55 : 19,950.84 = 8,361.41 : x
  2. Step 2: Convert to fraction form
    13,297.55/19,950.84 = 8,361.41/x
  3. Step 3: Cross multiply
    13,297.55x = 19,950.84 × 8,361.41
  4. Step 4: Simplify right side
    13,297.55x = 166,817,053.33
  5. Step 5: Solve for x
    x = 166,817,053.33/13,297.55
  6. Step 6: Final answer
    x = 12,544.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.